Not so long back there was this news about a Facebook virus named “Koobface” that if executed would turn your computer into a zombie and so I thought it is the right time to reflect upon some of the deadliest PC viruses till date.
The point that you need to understand here is that Computer viruses like those mentioned below are still being regularly programmed and sent through attachments or downloads and therefore you should always try to avoid downloading any attachment from any unknown sender or any file from unknown site.
But in case you do, immediately contact the computer repair center and get it fixed.
Also Read : Protect Your PC with Antivirus
Here are the 5 worst computer viruses till date.
First computer virus in our list is Melissa Virus in 1999. It spread through Microsoft Word 97 and Word 2000. Using a mass email process it was able to access and delete critical Windows file. The losses were estimated to be around $ 1 billion.
Second computer virus in our list is ILOVEYOU virus that appeared in the year 2000. The virus which spread through email used your email contacts to send more messages. The estimated losses were about $ 8.7 billion and roughly ten percent of all the computers that were connected to the internet were affected.
Third computer virus in our list is Code Red Virus that appeared in the year 2001. The virus benefited from the overflow vulnerability in Microsoft IIS servers and replicated itself in other MS computers. The overall losses were estimated to be around $ 2 billion.
Fourth computer virus in our list is MSBlast virus that appeared in the year 2003. It affected over 25 million PC’s and losses were estimated to be about $ 10 billion.
Fifth and last in our list is Sobig Virus that appeared in the year 2003. The virus entered the PC in the form of an email attachment which if executed would collect email ids and send messages to all of them. It literally flooded the internet with emails. When it all got over the losses were estimated to be $ 1 billion with more than 500,000 computers affected.
There was a recent outbreak of WannaCry Ransomware as well. This ransom ware encrypted all the files of a users computer and asked for payment of $300 without which the encrypted files would be deleted .
You can save yourself from virus and ransom wares by using Antivirus and some of the Antivirus software that are regularly updated are :
This is Quickheal Antivirus which would be latest edition. You will not only get protection from Viruses but also get regular updates so that during your subscription period you do not get any infection.
This is also lightweight on computer and does not use much memory so does not slow your computer.
It is available for only Windows based PC/Laptops. Subscription is valid for a single computer for one year.
This is Quickheal Total Security which will make sure that no virus can get into your computer. It also blocks unknown USB Drives from copying data into your computer.
This Antivirus is valid for 2 computers for a single year. This will not only protect you from virus but also ransom ware as well.
When I did not knew anything about internet around 10-12 years ago, I used to download files that were infected and as a result of which computer got infected.
I do not use any commercial Antivirus now, because Microsoft has bundled it’s Security Essentials since Windows 7 and I also get regular updates so I am protected.
So, how many of you guys still use Antivirus and Internet Security, I would love to know in the comments below.